How You Roll When You’re a Girl Scout Selling Cookies at Facebook

You think you know about Silicon Valley, but you have no idea. Even the Girls Scouts here are different. When the time of year comes around for Girl Scout cookies, there's no walking door-to-door, lugging boxes of Thin Mints. Here, thanks to Facebook events, an iPhone and Twitter-founder Jack Dorsey's payment service Square, tech-advanced 9-year-olds can sell 400 boxes in less than an hour. Because when you're a Girl Scout in Silicon Valley, that's how you roll.